Color

#0451be

#0451be
hex#0451be
rgbrgb(4, 81, 190)
hslhsl(215, 96%, 38%)
oklchoklch(0.466 0.184 259.7)
Closest name: Denim (#2243b6)Relative luminance 0.0963

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#be7004

#04aebe · #1304be

#be0451 · #51be04

Split-complementary

Open in tool →

#be1304 · #aebe04

#be04ae · #be7004 · #04be13

Contrast

#0451be as textRatioAAAA largeAAAFix
Aaon white
7.18:1passpasspassPasses AAA — no fix needed.
Aaon black
2.93:1failfailfail
  • AA: use #0a6efa as the text (4.62:1)
  • AAA: use #5097fb as the text (7.16:1)
  • AA: or shift the background to #cfcfcf (4.61:1)
  • AAA: or shift the background to #ffffff (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0451be as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#0451be reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0451be
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0451be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0451be-9ca8c4-df5d4e-201f2d-e9f0f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md